:root {
  color-scheme: light;
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-subtle: #f8fafc;
  --surface-accent: #eef5fd;
  --text: #172033;
  --text-soft: #5d6779;
  --text-faint: #778296;
  --border: #d9e0e8;
  --border-strong: #c5ced9;
  --primary: #155aa8;
  --primary-hover: #0e498b;
  --primary-soft: #e9f2fc;
  --success: #167c55;
  --success-soft: #eaf7f1;
  --gold: #9a6700;
  --gold-soft: #fff7df;
  --danger: #b42318;
  --danger-soft: #fff0ee;
  --focus: #286fbe;
  --shadow-card: 0 1px 2px rgb(20 32 52 / 5%), 0 12px 32px rgb(20 32 52 / 7%);
  --shadow-result: 0 18px 48px rgb(17 66 117 / 12%);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 9px;
  --page-width: 1200px;
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1422;
  --surface: #111d2d;
  --surface-subtle: #162335;
  --surface-accent: #152b46;
  --text: #eef4fb;
  --text-soft: #adbacb;
  --text-faint: #91a0b4;
  --border: #2b3a4e;
  --border-strong: #405169;
  --primary: #78aff5;
  --primary-hover: #9bc5fa;
  --primary-soft: #173558;
  --success: #69d4a6;
  --success-soft: #153b31;
  --gold: #f2c55c;
  --gold-soft: #3a3018;
  --danger: #ff8b82;
  --danger-soft: #452421;
  --focus: #8cc0ff;
  --shadow-card: 0 1px 2px rgb(0 0 0 / 20%), 0 16px 38px rgb(0 0 0 / 24%);
  --shadow-result: 0 20px 50px rgb(0 0 0 / 32%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 50% -20%, color-mix(in srgb, var(--primary-soft) 65%, transparent), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  transition: background-color 180ms ease, color 180ms ease;
}

button,
input,
select {
  font: inherit;
}

button,
summary,
select,
input[type="checkbox"] {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

a {
  color: var(--primary);
  text-underline-offset: 0.18em;
}

svg {
  display: block;
}

.page-shell {
  width: min(calc(100% - 40px), var(--page-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--surface);
  transform: translateY(-160%);
  transition: transform 150ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 68%, transparent);
  outline-offset: 3px;
}

.site-header {
  border-bottom: 1px solid color-mix(in srgb, var(--border) 78%, transparent);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--text);
  text-decoration: none;
}

.brand img {
  width: 37px;
  height: 51px;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand span {
  min-width: 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.brand small {
  margin-top: 2px;
  color: var(--text-soft);
  font-size: 0.76rem;
}

.theme-toggle {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-subtle);
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 650;
  transition: border-color 150ms ease, background-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  background: var(--surface-accent);
  color: var(--text);
}

.theme-toggle:active {
  transform: translateY(1px);
}

.theme-icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

:root[data-theme="dark"] .theme-icon-sun,
:root:not([data-theme="dark"]) .theme-icon-moon {
  display: none;
}

.main-content {
  padding-block: 30px 46px;
}

.privacy-note {
  display: flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  max-width: 100%;
  margin: 0 0 16px;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.privacy-note svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--success);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.privacy-note strong {
  color: var(--success);
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  align-items: start;
  gap: 20px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

.modules-card {
  min-width: 0;
  padding: 24px;
}

.card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
p {
  overflow-wrap: break-word;
}

h1,
h2 {
  color: var(--text);
  line-height: 1.25;
}

.card-heading h1 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  letter-spacing: -0.025em;
}

.semester-intro {
  margin: -11px 0 18px;
  color: var(--text-soft);
  font-size: 0.8rem;
}

.semester-list {
  display: grid;
  gap: 16px;
}

.semester-group {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--surface);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.semester-group:focus-within {
  border-color: color-mix(in srgb, var(--primary) 36%, var(--border));
}

.semester-heading {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 13px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-accent) 62%, var(--surface));
}

.semester-group.is-collapsed .semester-heading {
  border-bottom-color: transparent;
}

.semester-identity,
.semester-tools {
  display: flex;
  align-items: center;
  min-width: 0;
}

.semester-identity {
  flex: 1 1 auto;
  gap: 7px;
}

.semester-tools {
  flex: 0 0 auto;
  gap: 8px;
}

.semester-collapse,
.remove-semester {
  width: 34px;
  min-height: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-soft);
  transition: background-color 140ms ease, color 140ms ease;
}

.semester-collapse:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.semester-chevron {
  display: block;
  font-size: 1.2rem;
  line-height: 1;
  transform: rotate(0deg);
  transition: transform 150ms ease;
}

.semester-group.is-collapsed .semester-chevron {
  transform: rotate(-90deg);
}

input.semester-name {
  min-width: 80px;
  max-width: 340px;
  min-height: 38px;
  padding: 6px 8px;
  border-color: transparent;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  font-weight: 740;
  letter-spacing: -0.015em;
}

input.semester-name:hover {
  border-color: var(--border);
  background: color-mix(in srgb, var(--surface) 72%, transparent);
}

input.semester-name:focus {
  border-color: var(--focus);
  background: var(--surface);
}

.semester-summary {
  color: var(--text-faint);
  font-size: 0.72rem;
  white-space: nowrap;
}

.remove-semester {
  color: var(--text-faint);
  font-size: 1.2rem;
}

.remove-semester:hover:not(:disabled) {
  background: var(--danger-soft);
  color: var(--danger);
}

.remove-semester:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.semester-content {
  padding: 13px;
}

.semester-content[hidden] {
  display: none;
}

.semester-confirmation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 13px;
  border-bottom: 1px solid color-mix(in srgb, var(--danger) 28%, var(--border));
  background: var(--danger-soft);
}

.semester-confirmation[hidden] {
  display: none;
}

.semester-confirmation p,
.semester-confirmation .button-row {
  margin: 0;
}

.semester-confirmation p {
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 650;
}

.button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 680;
  text-decoration: none;
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button-primary {
  border-color: color-mix(in srgb, var(--primary) 80%, #0000);
  background: #155aa8;
  color: #fff;
  box-shadow: 0 4px 12px rgb(21 90 168 / 18%);
}

:root[data-theme="dark"] .button-primary {
  border-color: #367fd0;
  background: #286ebd;
}

.button-primary:hover {
  background: #0e498b;
}

:root[data-theme="dark"] .button-primary:hover {
  background: #347eca;
}

.button-secondary {
  border-color: var(--border);
  background: var(--surface-subtle);
  color: var(--text);
}

.button-secondary:hover,
.button-add:hover {
  border-color: var(--border-strong);
  background: var(--surface-accent);
}

.button-text,
.button-danger-text {
  min-height: 34px;
  padding: 5px 7px;
  color: var(--primary);
}

.button-text:hover {
  background: var(--primary-soft);
}

.button-danger-text {
  color: var(--danger);
}

.button-danger-text:hover {
  background: var(--danger-soft);
}

.button-danger {
  border-color: var(--danger);
  background: var(--danger);
  color: #fff;
}

.button-danger:hover {
  filter: brightness(0.94);
}

.module-grid-head,
.module-row {
  display: grid;
  grid-template-columns: minmax(135px, 1.35fr) 108px 76px 132px 128px 38px;
  gap: 10px;
  align-items: start;
}

.module-grid-head {
  padding: 0 8px 8px;
  color: var(--text-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.module-grid-head em {
  color: var(--text-faint);
  font-size: 0.65rem;
  font-style: normal;
  font-weight: 500;
}

.module-list {
  display: grid;
  gap: 9px;
}

.module-row {
  position: relative;
  padding: 12px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-subtle);
  transition: border-color 160ms ease, background-color 160ms ease, opacity 160ms ease, transform 160ms ease;
  animation: row-in 180ms ease both;
}

.module-row:focus-within {
  border-color: color-mix(in srgb, var(--primary) 54%, var(--border));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-soft) 76%, transparent);
}

.module-row.is-excluded {
  border-style: dashed;
  background: color-mix(in srgb, var(--surface-subtle) 62%, var(--bg));
  opacity: 0.72;
}

.module-row.is-removing {
  opacity: 0;
  transform: scale(0.985);
}

.module-row-mobile-head {
  display: none;
}

.field {
  min-width: 0;
}

.field > .control-label,
.field > .field-label {
  display: none;
  margin-bottom: 5px;
  color: var(--text-soft);
  font-size: 0.72rem;
  font-weight: 680;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  outline: 0;
  transition: border-color 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

select {
  padding-right: 28px;
}

input[type="text"]::placeholder,
input[type="number"]::placeholder {
  color: var(--text-faint);
  opacity: 0.88;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 16%, transparent);
}

input[aria-invalid="true"] {
  border-color: var(--danger);
}

.toggle-field {
  padding-top: 3px;
}

.switch-control {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.75rem;
  font-weight: 650;
  user-select: none;
}

.switch-control input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.switch-track {
  position: relative;
  width: 34px;
  height: 20px;
  flex: 0 0 auto;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--border-strong);
  transition: background-color 140ms ease, border-color 140ms ease;
}

.switch-track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgb(0 0 0 / 22%);
  transition: transform 140ms ease;
}

.switch-control input:checked + .switch-track {
  border-color: var(--success);
  background: var(--success);
}

.switch-control input:checked + .switch-track::after {
  transform: translateX(14px);
}

.switch-control input:focus-visible + .switch-track {
  outline: 3px solid color-mix(in srgb, var(--focus) 68%, transparent);
  outline-offset: 3px;
}

.remove-module {
  width: 36px;
  min-height: 42px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-faint);
  font-size: 1.2rem;
  line-height: 1;
  transition: background-color 140ms ease, color 140ms ease;
}

.remove-module:hover:not(:disabled) {
  background: var(--danger-soft);
  color: var(--danger);
}

.remove-module:disabled {
  opacity: 0.3;
}

.row-feedback {
  grid-column: 1 / -1;
  min-height: 1.2em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: -2px 2px 0;
  color: var(--text-faint);
  font-size: 0.7rem;
}

.row-status.is-error {
  color: var(--danger);
}

.row-status.is-excluded-text {
  color: var(--gold);
}

.move-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  color: var(--text-faint);
  font-size: 0.68rem;
  font-weight: 650;
}

.move-control[hidden] {
  display: none;
}

.move-control select {
  width: auto;
  max-width: 150px;
  min-height: 29px;
  padding: 3px 25px 3px 7px;
  border-radius: 7px;
  font-size: 0.7rem;
}

.button-add {
  width: 100%;
  margin-top: 10px;
  border-color: var(--border);
  border-style: dashed;
  background: transparent;
  color: var(--primary);
}

.add-semester-bottom {
  margin-top: 16px;
}

.advanced-panel,
.reference-panel,
.calculation-details {
  border-top: 1px solid var(--border);
}

.advanced-panel {
  margin-top: 24px;
}

.advanced-panel > summary,
.reference-panel > summary,
.calculation-details > summary {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

.advanced-panel > summary > span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.advanced-panel > summary > span svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--text-soft);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.summary-chevron {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--text-soft);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
  transition: transform 150ms ease;
}

details[open] > summary .summary-chevron {
  transform: rotate(180deg);
}

.advanced-content {
  padding: 6px 0 2px;
}

.advanced-content h2 {
  margin: 0;
  font-size: 0.92rem;
}

.advanced-content p {
  margin: 3px 0 0;
  color: var(--text-soft);
  font-size: 0.78rem;
}

.section-heading-row,
.reset-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.weight-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.weight-grid label {
  color: var(--text-soft);
  font-size: 0.72rem;
  font-weight: 650;
}

.weight-grid input {
  margin-top: 5px;
}

.advanced-section {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.check-control {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 10px;
  color: var(--text-soft);
  font-size: 0.82rem;
  user-select: none;
}

.check-control input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.check-control span {
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  background: var(--surface);
}

.check-control input:checked + span {
  border-color: var(--primary);
  background: var(--primary);
}

.check-control input:checked + span::after {
  content: "";
  width: 8px;
  height: 4px;
  margin-top: -2px;
  border-bottom: 2px solid var(--surface);
  border-left: 2px solid var(--surface);
  transform: rotate(-45deg);
}

.check-control input:focus-visible + span {
  outline: 3px solid color-mix(in srgb, var(--focus) 68%, transparent);
  outline-offset: 3px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.field-status {
  min-height: 1.2em;
}

.field-status.is-error {
  color: var(--danger);
}

.field-status.is-success {
  color: var(--success);
}

.csv-schema code {
  font-family: var(--mono);
  font-size: 0.72rem;
}

.reset-section {
  position: relative;
  flex-wrap: wrap;
}

.reset-confirmation {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--border));
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
}

.reset-confirmation[hidden] {
  display: none;
}

.reset-confirmation p,
.reset-confirmation .button-row {
  margin: 0;
}

.reference-panel {
  margin-top: 4px;
}

.grade-reference {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 2px 0 8px;
}

.grade-reference span {
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-subtle);
  color: var(--text-soft);
  font-size: 0.72rem;
}

.grade-reference b {
  margin-right: 3px;
  color: var(--text);
}

.results-column {
  position: sticky;
  top: 20px;
}

.result-card {
  position: relative;
  overflow: hidden;
  padding: 25px;
  border-color: color-mix(in srgb, var(--primary) 24%, var(--border));
  box-shadow: var(--shadow-result);
}

.result-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), color-mix(in srgb, var(--gold) 75%, var(--primary)));
}

.result-card h2 {
  margin: 0;
  font-size: 1rem;
}

.cgpa-result {
  display: block;
  margin: 12px 0 4px;
  color: var(--text);
  font-size: clamp(3.7rem, 7vw, 4.7rem);
  font-weight: 770;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.065em;
  line-height: 1;
}

.cgpa-result.has-value {
  color: var(--primary);
}

.cgpa-result:not(.has-value) {
  color: var(--text-faint);
  font-weight: 500;
  letter-spacing: 0;
}

.cgpa-result.result-updated {
  animation: result-pulse 260ms ease;
}

.result-status {
  min-height: 2.8em;
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 0.81rem;
}

.result-divider {
  height: 1px;
  margin: 19px 0;
  background: var(--border);
}

.result-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.result-summary span {
  color: var(--text-soft);
  font-size: 0.72rem;
}

.result-summary b {
  display: block;
  margin-bottom: 2px;
  color: var(--text);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
}

.calculation-details {
  margin-top: 18px;
}

.calculation-details > summary {
  min-height: 44px;
  font-size: 0.8rem;
}

.calculation-details dl {
  display: grid;
  gap: 7px;
  margin: 0 0 2px;
}

.calculation-details dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-soft);
  font-size: 0.76rem;
}

.calculation-details dt,
.calculation-details dd {
  margin: 0;
}

.calculation-details dd {
  color: var(--text);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.result-help {
  margin: 11px 10px 0;
  color: var(--text-faint);
  font-size: 0.72rem;
  text-align: center;
}

.site-footer {
  padding: 21px 0 28px;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 0.73rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-inner nav {
  display: flex;
  gap: 7px;
  white-space: nowrap;
}

.footer-inner a {
  color: var(--text-soft);
}

.footer-inner p {
  margin: 0;
  text-align: right;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Information pages */
.info-main {
  width: min(calc(100% - 40px), 780px);
  margin-inline: auto;
  padding-block: 42px 54px;
}

.info-card {
  padding: clamp(24px, 5vw, 42px);
}

.info-card h1 {
  margin: 0 0 8px;
  font-size: clamp(1.6rem, 4vw, 2.15rem);
  letter-spacing: -0.035em;
}

.info-lead {
  margin: 0 0 28px;
  color: var(--text-soft);
  font-size: 1rem;
}

.info-section + .info-section {
  margin-top: 26px;
  padding-top: 25px;
  border-top: 1px solid var(--border);
}

.info-section h2 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.info-section p,
.info-section li {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.info-section p {
  margin: 8px 0 0;
}

.info-section ul {
  margin: 9px 0 0;
  padding-left: 20px;
}

.info-section li + li {
  margin-top: 5px;
}

.privacy-callout,
.disclaimer-callout {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-weight: 700;
}

.privacy-callout {
  border: 1px solid color-mix(in srgb, var(--success) 28%, var(--border));
  background: var(--success-soft);
  color: var(--success) !important;
}

.disclaimer-callout {
  border: 1px solid color-mix(in srgb, var(--gold) 28%, var(--border));
  background: var(--gold-soft);
  color: var(--text) !important;
}

.formula {
  overflow-x: auto;
  padding: 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-subtle);
  color: var(--text) !important;
  font-family: var(--mono);
  font-size: 0.86rem !important;
  white-space: nowrap;
}

.method-table {
  width: 100%;
  margin-top: 12px;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.method-table th,
.method-table td {
  padding: 8px 10px;
  border: 1px solid var(--border);
  text-align: left;
}

.method-table th {
  background: var(--surface-subtle);
  color: var(--text);
}

.method-table td {
  color: var(--text-soft);
}

.method-table.compact td:nth-child(even) {
  font-variant-numeric: tabular-nums;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 17px;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: none;
}

.back-link:hover {
  color: var(--primary);
}

@keyframes row-in {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes result-pulse {
  0% { opacity: 0.72; transform: translateY(2px); }
  100% { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1080px) {
  .module-grid-head,
  .module-row {
    grid-template-columns: minmax(125px, 1.25fr) 100px 72px 120px 118px 36px;
    gap: 8px;
  }
}

@media (max-width: 980px) {
  .calculator-layout {
    grid-template-columns: 1fr;
  }

  .results-column {
    position: static;
    display: grid;
    grid-template-columns: minmax(0, 430px) minmax(180px, 1fr);
    align-items: center;
    gap: 18px;
  }

  .result-help {
    margin: 0;
    text-align: left;
  }
}

@media (max-width: 760px) {
  .page-shell,
  .info-main {
    width: min(calc(100% - 28px), var(--page-width));
  }

  .main-content {
    padding-block: 22px 36px;
  }

  .modules-card {
    padding: 18px;
  }

  .module-grid-head {
    display: none;
  }

  .module-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 11px 10px;
    padding: 13px;
  }

  .module-row-mobile-head {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: -3px;
    color: var(--text-soft);
    font-size: 0.72rem;
    font-weight: 750;
  }

  .module-row-mobile-head .remove-module {
    width: 34px;
    min-height: 34px;
  }

  .module-row > .remove-module {
    display: none;
  }

  .field > .control-label,
  .field > .field-label {
    display: block;
  }

  .module-name-field {
    grid-column: 1 / -1;
  }

  .row-feedback {
    margin-top: -3px;
  }

  .weight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .footer-inner p {
    text-align: left;
  }
}

@media (max-width: 560px) {
  .header-inner {
    min-height: 68px;
  }

  .brand img {
    width: 31px;
    height: 43px;
  }

  .brand small,
  .theme-label {
    display: none;
  }

  .theme-toggle {
    width: 40px;
    padding: 0;
    justify-content: center;
  }

  .privacy-note {
    align-items: flex-start;
  }

  .modules-heading {
    align-items: flex-start;
  }

  .add-semester-top {
    display: none;
  }

  .semester-intro {
    margin-top: -10px;
  }

  .semester-heading {
    gap: 8px;
    padding-inline: 9px;
  }

  input.semester-name {
    max-width: 100%;
  }

  .semester-summary {
    display: none;
  }

  .semester-content {
    padding: 10px;
  }

  .semester-confirmation {
    align-items: flex-start;
    flex-direction: column;
  }

  .results-column {
    display: block;
  }

  .result-help {
    margin: 11px 10px 0;
    text-align: center;
  }

  .result-card {
    padding: 22px;
  }

  .section-heading-row,
  .reset-section {
    align-items: flex-start;
  }

  .reset-confirmation {
    align-items: flex-start;
    flex-direction: column;
  }

  .method-table {
    font-size: 0.78rem;
  }

  .method-table th,
  .method-table td {
    padding: 7px;
  }
}

@media (max-width: 380px) {
  .page-shell,
  .info-main {
    width: min(calc(100% - 22px), var(--page-width));
  }

  .modules-card {
    padding: 14px;
  }

  .module-row {
    padding: 11px;
  }

  .switch-control {
    gap: 6px;
    font-size: 0.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}